3 Answers
3

Possibly, but anything you might find would be erroneous records because these IPs are not routed publicly on the Internet (see RFC 1918). Even if you had one that worked, you would be piggy-backing on someone else's record just like using images hosted on another website. That person could just change the record (or image) at any time, and it would affect you.

Your best bet for this, if you can't change the hosts file, is to run your own DNS server in your intranet. Run something on your router if it can do this, or even set up a small Linux box running BIND.